User:TFryBU/sandbox

Definition
System generated queue used for storing messages that can't be delivered.

Types of Messages
There are two types of messages involved in Dead Letter Queues. Transactional and Nontransactional messages are sent depending on the type of message received.

Delivery Failure
There are several reasons for delivery failure.
 * Network Failure
 * A Deleted Queue
 * A Full Queue
 * Authentication Failure
 * Or a Failure to Deliver on Time